DFRobot
2-Way 18650 Battery Holder
A dual-slot 18650 battery holder with built-in charging and regulated power outputs, perfect for powering microcontrollers, sensors, and portable electronics...
A dual-slot 18650 battery holder with built-in charging and regulated power outputs, perfect for powering microcontrollers, sensors, and portable electronics projects. Simply install two 18650 lithium batteries and use the multiple 5V and 3.3V output ports to run your devices.
The holder features both Micro-USB and USB-C charging inputs, overcharge and over-discharge protection to extend battery lifespan, and a DIP switch to select between Normal and Hold output modes.
Key Features
- Dual 18650 Battery Slots – Install two 18650 lithium cells for extended runtime
- Dual Charging Input – Micro-USB and USB-C inputs for flexible charging
- Multiple Outputs – 5× 5V/2A ports, 5× 3.3V/1A ports, and 1× USB output
- Battery Protection – Built-in overcharge and over-discharge protection
- Output Mode Switch – DIP switch for Normal (auto-shutdown at low current) or Hold (continuous output) modes
- LED Indicator – Blinks while charging, stops blinking when fully charged
Specifications
- 5V Output: 2A (maximum 3A)
- 3.3V Output: 1A
- Charging Input: Micro-USB and USB-C
- Output Ports: 5× 5V, 5× 3.3V, 1× USB
- Protection: Overcharge and over-discharge
- Battery Type: 18650 lithium (not included)
Ideal For
- Portable power for Arduino, Raspberry Pi, and microcontroller projects
- Outdoor equipment and field data logging
- DIY smart vehicles and robotics
- Mobile sensor stations and IoT devices
Package Contents
- 1× 2-Way 18650 Battery Holder
Jargon buster
Plain-language definitions for the technical terms used above.
- DIP switch
- A DIP switch is a small set of physical on/off switches used to configure hardware settings without software. It matters because changing features such as auto power-on or charging limits may require moving these tiny switches correctly.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- USB-C
- A modern reversible USB connector used for power and data connections. On this product it matters because it can connect directly to a computer as well as to a microcontroller project.
Find this product in
Power & Batteries
Supplier page — dfrobot.com
Supplier Description · 447.5 KB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au
